@mixin flex-align-center() {
    display: flex;
    align-items: center;
}
@mixin flex-center() {
    display: flex;
    align-items: center;
    justify-content: center;
}
@mixin flex-column-center() {
    display: flex;
    align-items: center;
    flex-direction: column;
}
@mixin theme($theme: DarkGray) {
    background: $theme;
    box-shadow: 0 0 1px rgba($theme, .25);
    color: #fff;
}
.flex{
    display: flex;
}
.flex-algin-center{

}
